Oil burner



HARRY B.VJ`"ALKER, OF ST. LGUIS, MSSORI.

OL BURNER.

Application led 'anuary This invention relates to improvements in oil burners and consists in the novel construction hereinafter described.

An object of the invention is'to provide an oil burner having a combustion chamber arranged to he mounted exteriorly of the heateleinent, in combination with means for atomizing oil delivered from an oil chamber into said combustion chamber, and supplying thereto a current of air to complete combustion.

Additional advantages of the structure will be apparent from the following detailed description thereof, talren in connection With the accompanying drawing, in VWhich- 1 is a side elevation of the complete trated in the drawing the apparatus is shown as including a cylindrical casting 1 having a tapered forward `end 2 and provided With au annular flange 3, said` casting being so designed as to be mounted exteriorly of a heating element such, for instance, as a furnace, by projectingthe end 2 through the wall of the fire boX 4 of the heating element. The "uli-er 2 is preferably arranged with a reduced outer end 5 yinto which an air supply s ge t3k is fitted. rllhe air is vsupplied said passage 6 from a blower de- ,v casting 1 has a segmental opening 8 in its loiver` portion,A and a plurality of GroovesV 9 are formed in the Wall over said nings. rlhe purpose ofthe grooves is serve as means for collecting the atomized delivered into the casting 1 vand to aet return passages for the return of the ac- Amlated oil baclr into-the oil chamher. The oil chamber consists of a cylindrical ng 10 having a clean out screw plug 11 .l oasti in its bottom Wall and a screw plug 12 in one of its end Walls, the screw plug 12 afpording means for access to the interior of the chamber for the purpose of mounting the 'rotor upon the driven shaft.

The opposite end Wall of the casting 10 has an opening therein and mounted in alinement with said opening is a flanfred pipe 13 that serves as an oil delivery pipe and also a support for bearings 14 in which the' pov-fer shaft 15 is mounted. The end of the pipe 13 is closed by a stuffing box 16.

A rotor, comprising a solid cylindrical hub 1? having a plurality of annular ribs 18 in- 26, 1925. Serial No. 4,738.

tegrally formed thereivitln the edges of said rihs being lrnurled or roughened, is mounted on the shaft 15 Within the oil chamber, the rotor being held rigidly on the shaft by a nut 19 tting over a threaded end of the shaft 15.

The oil is ,supplied to the oil chamber by forced feed through an oil supply passage 20, there being interposed in the line a. power driven pump 21 for pumping the oil to the oil chamber. The passage 2O enters the pipe 13 'through an opening in the side Wall thereof and is delivered into the oil chamber 10. The oil delivery pipe is equipped with a regulating valve and an oil pressure 'age 23.

ln order to maintain a constant evel in the chamber, the oil overiow pipe 24 is connected into the chamber 10 at a level slightly above the lower part of the opening from yhe pipe 18 into the chamber. rilhe overflow `i` e leads to a drip bucket 25 arranged to perate an automatic trip valvek 2G in the "eed line, thereby cutting off the feed of oil o the oil chamber When there is an over reed of oil thereto. lWhen `the valve 25 is closed the oil backs up in the line ahead of the valve 26 and is forced through a pressure valve 2? from which it may be conducted to the original source of supply.

The rotor of the pump and bloivenas Well as the rotor for atomizing the oil, is driven from the common shaft 15 by the motor 2S.

The operation of the devi-se is as follows: rilhe oil is supplied through' pipe 2O to the oil chamber 10, the rotor in the oil .chamber laeing revolved'hy means of the shaft 15,

and the oil is Carried into the combustion chamber in the form of an even spray .where it is atomized by the incoming delivered to the blower and forced into the combustion chamber of the heating element.

lf, for any reason the oil is not consumed when delivered to the combustion chamber 1, it is returned to the oil chamher and the oil is discharged through the overflow pipe 2li, operating to cut oil the oil supply. The flame resulting from the combustion of the mixture of 'oil vapor and air is forced through the opening 2 into the fire pot of 105 the heating elementfor heating purposes.

am aware that the invention may be varied in numerous particulars Without departing from the spirit and scope thereof. Therefore, l do not limit myself unessentially to details of construction and arrangel ment, but contemplateV such variations as may be within the scope of the appended claims.

IVhat I claim and deitire to secure by Letters Patent iszy l. In an oil burner, a combustion chamber having a generally cylindrical form, a blower passage connected into one end of the combustion chamber and a burner nozzle at the opposite end thereof, said chamber having an elongated opening through its bottom wall, an oil chamber connected exteriorly of the combustion chamber and extending downwardl.v therefrom, a rotor mounted in the oil chamber eo that the periphery7 thereofI extends through said openingl and into the combustion chamberl` and a drive Shaft for rotating said rotor to cause the same to elevate the liquid from the bottom of the oil chamber into the combustion chamber.

2. In an oil burner. a combustion chamber having a generally cylindrical form, a blower passage connected into one end ot' the combustion chamber and a burner nozzle at the opposite end thereof, said chamber having an `elongated opening through its bottom wall, an oil chamber connected exteriorly of the combustion chamber and extending' downwa'dly therefrom` a rotor comprising a Series of spaced ribs, the axes of which are parallel with the axis of the combustion chamber, said rotor being mounted in the oil chamber so that the periphery thereof extends through said opening and into the combustion chamber, and a drive shaft for rotating said rotor to cause the same to elevate the liquid from the bottom of the oil chamber into the combustion chamber.

3. In an oil burner, a combustion chamber having a generally cylindrical form` a blower passage connected into one end of the combustion chamber and a burner nozzle at the opposite end thereof, said chamber having an elongated opening through its bott-om wall, an oil chamber connected exteriorly7 of the combustion chamber and extrding downwardly therefrom.` a rotor comprising a series of spaced ribs the peripheries of which are lnurled and the axes of which are parallel with the axis of the combustion chamber, said rotor being mounted in the oil chamber so that the periphery thereof extends through said opening and into the combustion chamber, and a drive shaft for rotating said rotor to cause the same to elevate the liquid from the bottom of the oil chamber into the combustion chamber.

4:. In an oil burner, the combination with a. cylindrical combustion chamber having a discharge end adapted to be connected into the tire box of a heating element and the opposite end having a connection with a blower passage and said chamber being provided with an elongated opening' in its hottom wall, of an oil chamber rectangular in form connected to the exterior ot' the combustion chamber and extending downwardly therefrom and the. interior of which is en tirely out ot' alinement with the draught passing through the combustion chamber. a rotor revolubly mounted in said oil chamber and extending through the opening in eaid combustion chamber, and a drive :shaft for said rotor.

In an oil burner, the combination with a cylindrical combustion chamber having a discharge end adapted to be connected into the lire box of a heating element and the opposite end having a connection with a blower passage and said chamber being provided with an elongated opening in its bottom wall and said combustion chamber having a series of internal annular grooves that open into said opening in the bottom wall thereof, of an oil chamber rectangular in form connected to the exterior of the combustion chamber and extending downwardly therefrom and the interior of which is entirely out of alinement with the draught passing through the combustion chamber, a rotor revolubly7 mounted in said oil chamber and extending through the opening in said combustion chamber, and a drive shaft for .said rotor.

HARRY R. IVALKIII?. 

